Orksun Automatic Dusk-to-Dawn Aquarium LED Night Light w. Precision Sensor No on/off switch, photocell sensor automatically turns light on at dusk, and off at dawn. Stunning Aquarium design, with color changing lights. Save money on bulb replacement with energy efficient LEDs. Rated for 100,000 hours. 1 watt output. Perfect for Bathrooms, Bedrooms, and anywhere you need some extra light. Stays cool to the touch. UL certified.